CN103639209A - Ultrathin color-coated base cold rolling plate shape control method - Google Patents
Ultrathin color-coated base cold rolling plate shape control method Download PDFInfo
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- CN103639209A CN103639209A CN201310710191.6A CN201310710191A CN103639209A CN 103639209 A CN103639209 A CN 103639209A CN 201310710191 A CN201310710191 A CN 201310710191A CN 103639209 A CN103639209 A CN 103639209A
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Abstract
The invention relates to an ultrathin color-coated base cold rolling plate shape control method which comprises the following steps of selecting an ultrathin color-coated base hot rolling raw material: convexity: 20-60 micrometers, or 25-65 micrometers or 30-70 micrometers, and a wedge degree: less than or equal to 20 micrometers, evaluating local high/concave points of a cross section of band steel, controlling and increasing middle extension of the band steel with a micro-moderate wave mode, evaluating a cold rolling color-coated base plate shape, dividing the band steel into a measurement area A and a measurement area B in a width direction, and evaluating wave height differences of any three adjacent points in the area A and the area B respectively. The method can greatly improve the band steel plate shape control capability of a cold rolling procedure, and effectively controls middle ribbing and middle strip wave defects of the band steel.
Description
Technical field
The present invention relates to a kind of base-material of color coating as thin as a wafer cold-rolled plate shape control method, be specifically related to belong to and use CSP hot rolling raw material, at pickling cold continuous rolling production line, produce color coating base-material plate shape control technology as thin as a wafer.
Background technology
The need of production of Coil Coating Products is through hot rolling, pickling cold continuous rolling, zinc-plated, four production processes of color coating, and Coil Coating Products is very high to strip shape quality requirement as thin as a wafer, and the slight flatness defect of raw material will cause Coil Coating Products holiday, the unequal defect of coating.Cold rolling process is very large on the final strip shape quality impact of Coil Coating Products.Horse steel pickling cold continuous rolling production line unit is four frame tandem rollings, and milling train is six roller UCM milling trains.Due to horse steel rolling mill production line thin slab product production shape wave control ability stability as thin as a wafer, belt plate shape improves indifferent, causes as thin as a wafer swelling rib in central section of color coating base material, fillet wave defect serious.
Summary of the invention
The object of the present invention is to provide a kind of base-material of color coating as thin as a wafer cold-rolled plate shape control method, improve cold rolling process belt plate shape control ability, effectively control band steel middle muscle, middle part fillet wave defect.
Concrete technical scheme is as follows:
A color coating base-material cold-rolled plate shape control method, comprises the steps: as thin as a wafer
(1) selection of color coating base-material hot rolling raw material as thin as a wafer: it is 40 ± 20um that convexity requires, or, 45 ± 20um, or, 50 ± 20um, and, wedge degree requirement≤20um;
(2) evaluate band steel cross section part high/concave point;
(3) adopt micro-middle unrestrained pattern to control and increase the middle part extension of band steel;
(4) evaluate cold rolling color coating base-material plate shape: broad ways is divided into A, two measured zone of B by band steel, respectively the high difference of wave of 3 of arbitrary neighborhoods in A district and B district is evaluated.
Further, further comprise step: (5) meet the demands when the evaluation result of step (2) and/or (4), continue to produce, the evaluation result when step (2) and/or (4) meets failed call, according to evaluation result, adjusts.
Further, step (2) is specially: on the cross section vertical with rolling direction, and in mid point both sides ± 200mm interval, belt steel thickness difference≤20um; Outside mid point ± 200mm interval, high/low high in the part with the wide datum line of steel plate/require≤12um of concave point.
Further, adopt micro-middle unrestrained pattern to control in step (1), increase band steel middle part and extend, yield value is set to 6.
Further, in step (1), further select to require glacing flatness≤± 50I, qualification rate >=80% on band steel length direction.
Further, in step (1), H is base-material thickness, and as H≤1.8mm, convexity requires 40 ± 20um, 1.8mm < H≤2.0mm, and convexity requires 45 ± 20um, 2.0mm < H≤2.2mm, convexity requires 50 ± 20um.
Further, in step (4), two region dividing mode are, adopt horizontal X-axis and Y-axis longitudinally, and being positioned at Y-axis is A district on the occasion of area part, is positioned at Y-axis negative territory part B district.
Further, in step (4): be with steel for thickness h≤0.6mm, require three high difference≤8I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤8I of somes wave of horizontal arbitrary neighborhood in B region; For thickness, 0.6 < h≤1.0mm is with steel, requires three high difference≤10I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤10I of somes wave of horizontal arbitrary neighborhood in B region; For thickness h > 1.0mm band steel, require three high difference≤12I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤12I of somes wave of horizontal arbitrary neighborhood in B region.
Compare with currently available technology, the present invention can significantly improve cold rolling process belt plate shape control ability, effectively controls band steel middle muscle, middle part fillet wave defect.Thereby reduce swelling rib in central section of color coating base material, middle part fillet wave defect, improved color coating product quality, reduced the loss of product strip shape quality.The cold rolling color coating base-material that adopts the present invention to produce, due to clear and definite production process system, clear and definite hot rolling raw material plate shape specification requirement, standard is evaluated cold-rolled strip steel shape quality condition, reduces color coating product strip shape quality defect.Because middle muscle falls, middle part fillet wave defect is demoted, and zinc-plated paper-thin strip outgoing ratio reduced to monthly average 0.2% from the highest month 25%, average 7.76%, obtained great economic benefit.
Accompanying drawing explanation
Fig. 1 is band steel A of the present invention, two measured zone schematic diagrames of B
The specific embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
For standard color coating base-material cold continuous rolling operation production process system as thin as a wafer, define cold rolling process and produce color coating base-material plate shape specification requirement as thin as a wafer, the present embodiment discloses horse steel ultrathin cold-rolled color coating base-material production process system and the specification requirement of cold rolling unit color coating base-material plate shape.
Following production process system and control require all definite by a large amount of production practices and test, and the production control technology of ultrathin cold-rolled color coating base-material and the specification requirement of plate shape are described below:
A) color coating base-material is produced and is adopted micro-middle unrestrained pattern control as thin as a wafer, increases band steel middle part and extends, and yield value is set to 6;
B) color coating base-material hot rolling raw material specification requirement as thin as a wafer:
Mainly the convexity of raw material, wedge degree, glacing flatness and cross section part high (recessed) point four large technical indicators are claimed:
Convexity requires: H≤1.8mm:40 ± 20um; 1.8mm < H≤2.0mm:45 ± 20um; 2.0mm < H≤2.2mm:50 ± 20um;
Wedge degree requires :≤20um;
Glacing flatness requirement≤± 50I, qualification rate >=80% on band steel length direction;
Local high spot: on the cross section vertical with rolling direction, in mid point both sides ± 200mm interval, belt steel thickness difference≤20um; Outside mid point ± 200mm interval, high (low) is in part high (recessed) some requirement≤12um with the wide datum line of steel plate;
C) cold rolling color coating base-material plate shape specification requirement: broad ways is divided into A, two measured zone of B (as shown in Figure 1) by band steel, evaluates the high difference of wave of 3 of arbitrary neighborhoods in A district and B district respectively.
For thickness h≤0.6mm, be with steel, require three high difference≤8I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤8I of somes wave of horizontal arbitrary neighborhood in B region;
For thickness, 0.6 < h≤1.0mm is with steel, requires three high difference≤10I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤10I of somes wave of horizontal arbitrary neighborhood in B region;
For thickness h > 1.0mm band steel, require three high difference≤12I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤12I of somes wave of horizontal arbitrary neighborhood in B region;
The cold rolling color coating base-material that adopts the present invention to produce, due to clear and definite production process system, clear and definite hot rolling raw material plate shape specification requirement, standard is evaluated cold-rolled strip steel shape quality condition, reduces color coating product strip shape quality defect.Because middle muscle falls, middle part fillet wave defect is demoted, and zinc-plated paper-thin strip outgoing ratio reduced to monthly average 0.2% from the highest month 25%, average 7.76%, obtained great economic benefit.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (8)
1. a color coating base-material cold-rolled plate shape control method as thin as a wafer, is characterized in that, comprises the steps:
(1) selection of color coating base-material hot rolling raw material as thin as a wafer: it is 40 ± 20um that convexity requires, or, 45 ± 20um, or, 50 ± 20um, and, wedge degree requirement≤20um;
(2) evaluate band steel cross section part high/concave point;
(3) adopt micro-middle unrestrained pattern to control and increase the middle part extension of band steel;
(4) evaluate cold rolling color coating base-material plate shape: broad ways is divided into A, two measured zone of B by band steel, respectively the high difference of wave of 3 of arbitrary neighborhoods in A district and B district is evaluated.
2. the base-material of color coating as thin as a wafer cold-rolled plate shape control method as claimed in claim 1, it is characterized in that, further comprise step: (5) meet the demands when the evaluation result of step (2) and/or (4), continue to produce, evaluation result when step (2) and/or (4) meets failed call, according to evaluation result, adjusts.
3. the base-material of color coating as thin as a wafer cold-rolled plate shape control method as claimed in claim 1 or 2, is characterized in that, step (2) is specially: on the cross section vertical with rolling direction, and in mid point both sides ± 200mm interval, belt steel thickness difference≤20um; Outside mid point ± 200mm interval, high/low high in the part with the wide datum line of steel plate/require≤12um of concave point.
4. the base-material of the color coating as thin as a wafer cold-rolled plate shape control method as described in any one in claim 1-3, is characterized in that, adopts micro-middle unrestrained pattern to control in step (1), increases band steel middle part and extends, and yield value is set to 6.
5. the base-material of the color coating as thin as a wafer cold-rolled plate shape control method as described in any one in claim 1-4, is characterized in that, further selects to require glacing flatness≤± 50I in step (1), qualification rate >=80% on band steel length direction.
6. the base-material of the color coating as thin as a wafer cold-rolled plate shape control method as described in any one in claim 1-5, it is characterized in that, in step (1), H is base-material thickness, and as H≤1.8mm, convexity requires 40 ± 20um, 1.8mm < H≤2.0mm, convexity requires 45 ± 20um, 2.0mm < H≤2.2mm, and convexity requires 50 ± 20um.
7. the base-material of the color coating as thin as a wafer cold-rolled plate shape control method as described in any one in claim 1-6, it is characterized in that, in step (4), two region dividing mode are, adopt horizontal X-axis and Y-axis longitudinally, being positioned at Y-axis is A district on the occasion of area part, is positioned at Y-axis negative territory part B district.
8. the base-material of the color coating as thin as a wafer cold-rolled plate shape control method as described in any one in claim 1-7, is characterized in that, in step (4): be with steel for thickness h≤0.6mm, require three high difference≤8I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤8I of somes wave of horizontal arbitrary neighborhood in B region; For thickness, 0.6 < h≤1.0mm is with steel, requires three high difference≤10I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤10I of somes wave of horizontal arbitrary neighborhood in B region; For thickness h > 1.0mm band steel, require three high difference≤12I of somes wave of horizontal arbitrary neighborhood in a-quadrant; Three high absolute difference≤12I of somes wave of horizontal arbitrary neighborhood in B region.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090673A (en) * | 2017-12-15 | 2018-05-29 | 马鞍山钢铁股份有限公司 | A kind of evaluation method of the plate shape in kind of cold-strip steel |
| CN108941209A (en) * | 2018-06-20 | 2018-12-07 | 北京首钢股份有限公司 | A method of control cold-strip steel middle muscle defect |
| CN110000223A (en) * | 2019-03-26 | 2019-07-12 | 燕山大学 | A kind of measurement error modification method being suitable for the offline plate shape of flat cold-rolled sheet |
| CN114965935A (en) * | 2022-05-17 | 2022-08-30 | 马鞍山钢铁股份有限公司 | Strip steel quality judgment method and system based on customer requirements |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61202712A (en) * | 1985-03-06 | 1986-09-08 | Kawasaki Steel Corp | Rolling method by controlling shape of sheet stock |
| JPS6277110A (en) * | 1985-09-30 | 1987-04-09 | Kawasaki Steel Corp | Dimension and shape straightening apparatus for hot rolling steel plate |
| CN102248003A (en) * | 2011-06-26 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for overcoming bright band defect of hot-rolled band steel |
| CN102581025A (en) * | 2011-01-12 | 2012-07-18 | 宝山钢铁股份有限公司 | Slight center wave control method for straightness of hot rolling strip steel |
-
2013
- 2013-12-19 CN CN201310710191.6A patent/CN103639209B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61202712A (en) * | 1985-03-06 | 1986-09-08 | Kawasaki Steel Corp | Rolling method by controlling shape of sheet stock |
| JPS6277110A (en) * | 1985-09-30 | 1987-04-09 | Kawasaki Steel Corp | Dimension and shape straightening apparatus for hot rolling steel plate |
| CN102581025A (en) * | 2011-01-12 | 2012-07-18 | 宝山钢铁股份有限公司 | Slight center wave control method for straightness of hot rolling strip steel |
| CN102248003A (en) * | 2011-06-26 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for overcoming bright band defect of hot-rolled band steel |
Non-Patent Citations (4)
| Title |
|---|
| 侯安全: "热连轧机质量保证指标的探讨", 《山西冶金》, no. 01, 30 March 2004 (2004-03-30) * |
| 周宏伟: "彩色涂层钢带TDC51D的生产及工艺优化", 《本钢技术》, no. 01, 25 February 2008 (2008-02-25), pages 26 - 29 * |
| 李伟: "彩涂板常见质量缺陷原因及对策分析", 《河北化工》, vol. 32, no. 05, 20 May 2009 (2009-05-20), pages 53 - 55 * |
| 李进: "冷轧带钢板形测量和控制", 《中国仪器仪表》, no. 04, 27 August 1999 (1999-08-27), pages 27 - 30 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090673A (en) * | 2017-12-15 | 2018-05-29 | 马鞍山钢铁股份有限公司 | A kind of evaluation method of the plate shape in kind of cold-strip steel |
| CN108090673B (en) * | 2017-12-15 | 2022-03-01 | 马鞍山钢铁股份有限公司 | Method for evaluating physical plate shape of cold-rolled strip steel |
| CN108941209A (en) * | 2018-06-20 | 2018-12-07 | 北京首钢股份有限公司 | A method of control cold-strip steel middle muscle defect |
| CN108941209B (en) * | 2018-06-20 | 2020-02-04 | 北京首钢股份有限公司 | Method for controlling rib forming defect in middle of cold-rolled strip steel |
| CN110000223A (en) * | 2019-03-26 | 2019-07-12 | 燕山大学 | A kind of measurement error modification method being suitable for the offline plate shape of flat cold-rolled sheet |
| CN114965935A (en) * | 2022-05-17 | 2022-08-30 | 马鞍山钢铁股份有限公司 | Strip steel quality judgment method and system based on customer requirements |
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